document.write( "Question 172734: I'm not sure if i am in the right area, but could someone please help me?
\n" ); document.write( "Solve by the substitution method.
\n" ); document.write( "5x + 7y = 7
\n" ); document.write( "-8x + y = 62\r
\n" ); document.write( "\n" ); document.write( "What is the solution of the system? (Type an ordered pair. Type N is there is no solution.\r
\n" ); document.write( "\n" ); document.write( "Thank you.
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Algebra.Com's Answer #127613 by Alan3354(69443)\"\" \"About 
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Solve by the substitution method.
\n" ); document.write( "5x + 7y = 7
\n" ); document.write( "-8x + y = 62
\n" ); document.write( "----------
\n" ); document.write( "y = 8x+62 (from the 2nd eqn)
\n" ); document.write( "Sub into eqn 1
\n" ); document.write( "5x + 7*(8x+62) = 7
\n" ); document.write( "61x = -427
\n" ); document.write( "x = -7
\n" ); document.write( "---------
\n" ); document.write( "-8*(-7) + y = 62
\n" ); document.write( "y = 6
\n" ); document.write( "------
\n" ); document.write( "(-7,6) is the intersection of the 2 lines.
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